Mattresses 101
I work at Levitz Furniture (a large chain) and this is how we are trained.
1. Coil counts don't really matter. They are a tiebbreaker if you can't decide between one matt and another. More coils doesn't always mean BETTER coils. A Stearns and Foster, the best you can buym, has LESS coils than a mid to upper range Serta. But Stearns is usually a better bed.
2. The most important thing is COMFORT. No one ever goes to bed saying they're glad they have 800 coils or I'm glad I bought brand x. You go to bed glad that you love your mattress. The only way to get the best one is to tell the salesperson what kind of feel yyou like (soft, firm, marshmallow, etc.) and any salesperson worth his salt can narrow it down to three. Then lay on them...and TAKE YOUR TIME!
3. mAKE SURE YOU TEST IT THE WAY YOU SLEEP. iF YOU SLEEP ON YOUR SIDE, test it on your side.
4. If the $600 set is more comfortable than the $1200 set, you want the $600 set.
5. Matt companies typically give a 10 yr non-prorated warranty. But if you get ANY stains, rips tear etc, on it, your warranty is void. Even if a defect has nothing to do with it. It sucks, but getting the warranty against this damage (usually around $60), is worthwhile if your rough on your beds like that.
6. Different companies do different pricing. Levitz is very agressive at keeping lower prices then their competitors and WILL NOT NEGOTIATE the price. Places that sell bedding only will negotiate because they tend to "pump and dump" the price to make the bargain look larger.
7. One sided mattresses are generally NOT good. The ones from Sealy are pretty good, IMO/ Simmons and Serta, not so. Also with one sided, you can't flip it. So if you spill your drink at 9:00 pm, you can flip it over to avoid the wet spot.
8. I don't like Simmons myself. They tend to wear faster. Since they have individual coils, they don't pull support from surrounding coils to support you. Other coil mattresses pull support from the whole sleeping area, not just the coils you body presses on. Most coil matts run head to toe, meaning that this helps keep any motion from travelling very far side to side. You really don't get that much more motion from a regular coil unit compared to Simmons.
9. My recommendations? Stearns has the hardest coil unit. Serta and Sealy are a close second. Hard foam edges are a must if you find yourself sleeping on the edge a lot. Other brands that are ok are Bassett and Restonic. I've sold Simmons and Spring Air. On the whole, they weren't as good in quality as the others.